#4637B0#4637B0

#4637B0 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.183 H 281.2°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#4637B0
RGB	rgb(70, 55, 176)
HSL	hsl(247, 52%, 45%)
HSV	hsv(247, 69%, 69%)
CMYK	cmyk(60.2%, 68.8%, 0%, 31%)
CIE-LAB	lab(32.19, 41.21, -62.31)
CIE-LCH	lch(32.19, 74.71, 303.48°)
OKLab	oklab(43.3% 0.0354 -0.1795)
OKLCH	oklch(43.3% 0.183 281.2)
XYZ	xyz(11.7260, 7.1682, 41.8316)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.12

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4637B0 #A1B037

analogous

#3764B0 #4637B0 #8237B0

triadic

#4637B0 #B04637 #37B046

tetradic

#4637B0 #B03764 #A1B037 #37B082

square

#4637B0 #B03764 #A1B037 #37B082

split-complementary

#4637B0 #B08237 #64B037

monochromatic

#211A53 #332881 #4637B0 #6759CB #9288DA

Accessibility & contrast

On white

8.63

#4637B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#4637B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4637B0

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4637B0	#FFFFFF	#000000	##FFFFFF
##4637B0	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B4

Deuteranopia (green-blind)

#0047AE

Tritanopia (blue-blind)

#00576F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4637b0;
/* rgb */ color: rgb(70, 55, 176);
/* oklch */ color: oklch(43.3% 0.183 281.2);

Tailwind

colors: {
  custom: {
    50: '#856fc9',
    500: '#4637b0',
    950: '#000000',
  },
}

SCSS

$custom: #4637b0;
$custom-light: #856fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4637b0",
  "rgb": {
    "r": 70,
    "g": 55,
    "b": 176
  },
  "hsl": {
    "h": 247.438,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43301,
    "c": 0.18296,
    "h": 281.2
  },
  "luminance": 0.07169
}

Semantic roles & 50–950 ramp

primary

#4637B0

secondary

#BBC47F

accent

#DC4CCA

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4637B0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →